<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script src="/js/vue.js"></script>
  <div id="app">
    <p v-text="msg">123</p>
    <p>{{msg}}123</p>
  </div>
</body>
<script>
    var vm = new Vue({
      el:"#app",
      data:{ 
        msg:'Hello China!'
      }
    })
</script>
</html>